Provera drug interactions: a practical overview
Drug interactions are the single biggest cause of preventable medication problems. Provera (Medroxyprogesterone Acetate) interacts to varying degrees with several classes of medication and with a smaller list of foods. This page summarises the practically important ones at 2.5mg, 5mg, 10mg, framed for a real-world prescription review rather than an exhaustive PDF list.
High-priority interactions for Provera
For Medroxyprogesterone, the most clinically relevant interactions are typically with strong CYP3A4 inhibitors and inducers, with cardiovascular medications (notably nitrates for several Women's Sexual Health agents), with central nervous system depressants, and with medications affecting blood pressure or heart rate. Medroxyprogesterone acetate binds progesterone receptors and produces strong progestational effects: thickening cervical mucus, inhibiting ovulation, thinning the endometrium and reducing endometrial…
Working with the pharmacist
A pharmacist review of all current medications is the practical safeguard against unintended interactions with Provera. According to the prescribing information for Medroxyprogesterone, the full medication list — prescription, OTC, supplements and recreational substances — should be reviewed before starting and at every dose change at 2.5mg, 5mg, 10mg.
Frequently asked questions
What's the most important Provera interaction to know? ▾
For most Women's Sexual Health medications, the highest-priority interaction is with nitrate medications used for chest pain — this combination is often a hard contraindication. After that, strong CYP3A4 inhibitors (some antifungals, macrolides) are the next concern at routine 2.5mg, 5mg, 10mg doses.
Do I need to tell the pharmacist about supplements? ▾
Yes. Supplements and herbal products can interact with Provera in ways that prescription drug-drug interaction databases miss. The pharmacist needs the complete picture — including supplements like St John's Wort, grapefruit-containing products and high-dose vitamins — to flag risks at 2.5mg, 5mg, 10mg.
More on Provera
- With alcoholProvera and alcohol — is it safe to drink?
- With foodShould Provera be taken with food?
- Side effectsProvera side effects: common, rare and warning signs
- Dosage guideProvera dosage guide: how much to take and when
- OnsetHow fast does Provera start working?
- DurationHow long does Provera last?
The information on this website is provided for reference and educational purposes only. It does not replace consultation with a qualified healthcare professional.